13638607 has 8 divisors (see below), whose sum is σ = 14831856. Its totient is φ = 12488832.

The previous prime is 13638593. The next prime is 13638623. The reversal of 13638607 is 70683631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13638607 - 2⁷ = 13638479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13638307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10213 + ... + 11470.

It is an arithmetic number, because the mean of its divisors is an integer number (1853982).

Almost surely, 2^13638607 is an apocalyptic number.

13638607 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13638607 is a deficient number, since it is larger than the sum of its proper divisors (1193249).

13638607 is a wasteful number, since it uses less digits than its factorization.

13638607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21737.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 13638607 is about 3693.0484697604. The cubic root of 13638607 is about 238.9222916896.

The spelling of 13638607 in words is "thirteen million, six hundred thirty-eight thousand, six hundred seven".